40006737 has 8 divisors (see below), whose sum is σ = 59269280. Its totient is φ = 26671140.

The previous prime is 40006717. The next prime is 40006739. The reversal of 40006737 is 73760004.

It is not a de Polignac number, because 40006737 - 2⁸ = 40006481 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1481731 = 40006737 / (4 + 0 + 0 + 0 + 6 + 7 + 3 + 7).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40006737.

It is not an unprimeable number, because it can be changed into a prime (40006739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 740839 + ... + 740892.

It is an arithmetic number, because the mean of its divisors is an integer number (7408660).

Almost surely, 2^40006737 is an apocalyptic number.

It is an amenable number.

40006737 is a deficient number, since it is larger than the sum of its proper divisors (19262543).

40006737 is a wasteful number, since it uses less digits than its factorization.

40006737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481740 (or 1481734 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 40006737 is about 6325.0879045275. The cubic root of 40006737 is about 342.0143884374.

The spelling of 40006737 in words is "forty million, six thousand, seven hundred thirty-seven".